Metal-car-roof.



W. P. MURPHY. METAL GAR ROUF. APPLICATIOE FILED JAN. 2a, 1911.

Patented Sept. 26, 1911.

2 SHEETS-SHEET 1.

W. P. MURPHY.

METAL GAR ROOF. 4 APPLICATION FILED JAN.23,1911.

Patented Sept. 26, 1911.

' 2 smzmmaun'r 2 @0657??? J M7? W UNITED STATES PA TENT OFFICE.

WALTER P. MURPHY, OF CHICAGO, ILLINOIS.

To all whom it may concern:

Be it known that I, Var/rm: P. hlunrnv. a citizen of the United States, and a resident of the city of Chicago, in the countyoi ook and State of Illinois, have invented a new and useful Improvement in Metal (laislioofmof which the following is a specification. j .l invention relates to improvements in metal roofs for freight cars which sheet metal roof sheets are supported 'onthe roof substructure, and connected by jimnying drawing showingan embodiment -thereof', in which drawings like nluuerals are usedtodesignate like parts throughout the several tigures, and what I believe is new and? of my invention will be particularly pointed out in the claims forming a part of this specification.

In the drawings accompanying this up:- plication, Figure 1 is a partial section throughtthe caves of a metal car root"; Fig. 2 is a partial section on the line in .Fig. 1.;. Fig. 3 is a partial section on the line in. Fig. 1; Fig.- l is a partial section onthe line in Fig. 1; Fig. 5 is a partial section ou-- the line 5-5 in. F 7, showing the seam cap in side elevation; Fig.z6 is=a-partialisection on the line 6-43 in Fig; 7 showingthe seamlcap inside elevation; andJFig; 71 is a partialview in side elevatiomofi the caves of the roof at a seam showingthe hoodiclippartly broken away.

Intthe severalffiguresol" the drawings, 1

. dcnotesaisiddpostvofr a. car and 23the side platingg. 3 is the side plate securely riveted to :the 1 side posts and? serving: as i a support for the endsof! the ca'rlines 4+ which i are se curely. riveted tothe side plates on both sides ofthe car and also attached thereto means of brackets 20. The carlines 4 are of Specification of Letters Patent. Application filed January 2 3, 1911.

of the type inthereto.

METAL CAR-ROOF.

Patented Sept. 26, 1911. Serial No. 604,083.

T section having lateral flanges 23 and vertical flanges 16, arranged'with the vertical flanges uppermost, and are laterally braced by ourlins (5 extending between adjacent Cul'lilltS and securely riveted to the flanges 23 thereof. The body portion of the purlins is of an inverted channel shape, but the end portions thereof are flattened so as to rest t'l atwise against the horizontal flanges ot the carline. By this arrangement a space intervenes between the vertical portion of the carlineand the end of the raised portion of the purlin supported thereby which space is utilized to accommodate the trough or drain hereinafter mentioned. The roof sheets 7 are arranged on the purlins between the vertical flanges 16 of the carlines and have upturned side flanges 21 adjacent Between each side flange 21 and the substanfially flat portion of the root' sheet. are a deepcorrugation 15 next the side flange and a smaller corrugationl l; projecting slightly above the flat part of the root sheet, as shown in Fig. (t. The deep corrugation 15 preferably extends below the plane of the body of the sheet and is accommodated by the spare intervening between the vertical portion of he ('arline and the raised portions of" the purlins. Over the upstanding flanges 21 andthe vertical flange of the. earline is placed a seam cap 8 for'the purpose of providin; additionalprotection from the weather. This seam cap has an enlarged portion embracing the upper edges of the side flanges of the sheets and carline with a space between the inner walls of the seam cap and the upper parts o'f the flanges. The

seam cap has extensions 2t contacting with the middle portions of the side flanges 21 of the root sheets and terminating in lateral wings 13 extending at. right angles to the main body of the seam cap. 'lhese lateral wings bridge the space over the deep c0rru-- gations 15 and terminate adjacent the upper extremities of the raised corrugations H. The object of this arrangement of flanged corrugated sheets andseam cap. is

to n-event water driven b i the force of a storm or the motion of the air passing a swiftly moving car from entering the car overtlie tops of the :fianges 21. The corrugations 14' deflect asheet oflwater passing over thereof sheets and direct it upward over the seam caps/8,; thus lessenlng the 'In case some waterr under pressure does fol low up the inside: of the cap between the parts 24 and the flange 21, upon emerging into the space 22 within the seam cap near the top of the flange 21 it will lose itspressure and so will. not be driven up to the top of the flange 21 andthus into the car.

If it were not for the spaces at 15 and 22 a film of water under pressure entering beneath, the wing 13 would be driven up under the seam cap and over the flange 21 into the car, but these enlargements relieve the pressure. forcing this film of water under the'seam cap and thus serve to prevent its entrance into the car. I

At the caves of the roof where the carlines are riveted to the side plates the corrugations 14; are enlarged sufflciently so that the roof sheets avoid the rivets in the flanges of the carlines as shown at 19 in Figs. 2 and 7 The sea-1n caps and roof sheets are secured from becoming detached. from the roof substructure by hood clips 9 having front faces 18 covering the open ends of the corrugations and seam caps. The hood clips are secured to the side plate by rivets 10 passing through .holes in the roof sheets. These rivets have enlarged portions 11 above .the side plate which provide shoulders against which the flanges 17 (if the hood clips hear, these enlargements being of such thickness that the flanges 17 are spaced slightly above the roof sheets 7. The holes" ;/12 in the roof sheets are made somewhat cent the side fianges 22 introduce an element of flexibility between the roof sheets at the seams, and thus not only assist in preventing entrance of water at the seams but also serve to protect the roof sheets from tearing adjacent the seams, which would result were the sheets rigidly attached to each other or to the carlines at the 'seams.

[The wings 13, of the seam caps are pQsi-- tioned above the corrugations 14: in the roof sheets in order that the roof sheets may have some movement on -the roof at right angles to the carlines without danger of the seam caps and roof sheets coming in contact and wearing or cutting through. 5

The hood clips 9 are spaced away from the ends of the seam caps 8 and corrugations 15 in the sheets, and the front faces 18 of the clips are cut away at their lower edges in order to provide a space for the running off of storm water and an outlet for dirt which may have lodged under the seam caps 8 or in'the corrugations 15, thus enabling these places to be kept clear.

It is evident that my improvements are applicable to all outside metalroofs having roof sheets connected by upstanding seams, and I do not wish tohe understood as limiting my invention to the precise arrangement shown. v

Having described a particular embodiment of my invention, what I desire to claim and secure by Letters Patent is as follows:

1. In a car roof, the combination of carlines, purlins supported thereby below the tops thereof, metal roof sheets resting on said purlins and having side flanges turned up alongside of said carlines,said sheets being provided with an upwardl extending corrugation parallel with and a jacent to its side flanges, and seam caps covering acarline and the adjacent upturned flanges of adjacent sheets and having lateral extensions terminating immediately above said corrugations.

2. In a car roof, thecombination of carlines, purlins supported thereby below the tops thereof, metal roof sheets resting on said purlins, and seam caps covering the adjacent marginal portions of the sheets, themarginal portion of a sheet comprising a corrugation extending upwardly above the plane of the sheet, a second corrugation extending downwardly below the plane of the sheet and an upturned portion alongside of the carline, and a seam cap having a lateral portion extending over the downwardly extending corrugation and terminating immediately above said up-turned corrugation.

3. In a car roof, the combination of metal carlines having laterally extending flanges at the lower portion thereof, metal purlins with flattened end portions supported flat-- wise on said flanges and with raised body port ons, metal roof sheets resting on said purlms having up-turned margins arranged alongside of said carlines, and metal seam caps, the portion of the roof sheet next to its up-turned margin having a corrugation extending below the plane of the sheet, and the portion of the sheet adjacentto said downwardly extending corrugation having a corrugation extending above the plane ofv the sheet,and the seam caps having laterally extending portions which terminate immediately above the upwardly extending corrugations of adjacent sheets.

4. In a car roof,.the combination of metal carlines having laterally extendin flanges at the lower portion thereof, meta purlins with flattened end portions supported-flatwise on said flanges and with raised body 1' ortio ns, metal roof sheetsresting on said purlins having tip-turned margins arranged alongside of said earlines, and metal seam caps, the portion of the roof sheet next to its up-turned margin. having a corrugation extending below the plane of the sheet, and the portion of the sheet adjacent to said downwardly extending corrugation having a corrugation extending above the plane of the sheet, and the seam caps having laterally extending portions which terminate iin-- mediately above the upwardly extending corrugations of'adjaeent sheets, and said, seam caps being enlarged at the tops to provide a space between the interior walls thereof and thesides of the tip-turned margins of the sheets at their extremities.

5. In a car roof, the combination of carlines, purlins supported thereby below the tops thereof, metal roof sheets resting on said purlins, and seam caps covering the adaeent marginal portions of the sheets, the

marginal portion of a sheet comprising a corrugation extending upwardly above the plane ot' the sheet, "a second corrugation extending downwardly below the plane of the sheet and an up-turned portionalongside ot' the earlines, and a seam cap having a lateral portion extending over the downwardly extending corrugation and terminating immediately above said up-turned corruga tion, and means for movably holding said sheets upon the roof sub-structure, said means comprising clips overlying the sheets, fastened to the roof sub-structure by means of rivets passing through holes in the roof sheets, said holes being larger than the body portions of the rivets.

'6. In a car roof, the con'ibination bf carlines, purlins supported thereby below the tops thereof, metal roof sheets resting on said purlins, and seam caps covering the adjacent marginal portions of the sheets, the marginal portion of a sheet comprising a corrugation extending upwardly above. the plane of the sheet, a second corrugation extending downwardly below the'plane of the sheet and an n -turned portion alongside of the-carline, MK a seam cap havinga lateral portion extending over the downwardly ex tending corrugation and terminating immediately above said up-turned corrugation, and means for movably holding said sheets upon the root sub-structure, said means comprising clips secured to the sub-structure a'ndlha'ving the hood portions overlapping the end portions of the respective seam caps, the hood portion being perforated in regis- 'ter with the trough formed by the downwardly extending corrugations of; the root sheets.

WALTER P. MURPHY. Witnesses:

H. W. S'rannann, J osnrnmn A. H/m'mn'rr. 

